// Copyright (C) 2013 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 13.6.4.13
description: >
    Iterators that are implemented as proxies should behave identically to
    non-proxy versions.
features: [Proxy, Symbol.iterator]
---*/

function Test() {
    var iterable = {};
    var nextResult = { value: 23, done: false };
    var lastResult = { value: null, done: true };
    var i;

    var iterator = {
      next: function() {
        var result = nextResult;
        nextResult = lastResult;
        return result;
      }
    };
    var proxiedIterator = new Proxy(iterator, {
      get: function(target, name) {
        return target[name];
      }
    });
    iterable[Symbol.iterator] = function() { return proxiedIterator; };

    i = 0;
    for (var x of iterable) {
      assert.sameValue(x, 23);
      i++;
    }

    assert.sameValue(i, 1);
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
